**“FAA”** means the Federal Aviation Administration of the United States
Department of Transportation or any successor agency. 

 **“FARs”** means collectively the Aeronautics Regulations
of the Federal Aviation Administration and the Department of Transportation, as codified at Title 14, Parts 1 to 399 of the United States Code of Federal Regulations. 

 “**Flight Crew**” has the meaning specified in Section 5.3 of this Agreement. 

 **“Flight Hour”** means each flight hour of use of the Aircraft by Lessee, as recorded on the Aircraft hour meter and measured from the time the Aircraft wheel blocks are removed at the
beginning of a flight, to the time the Aircraft wheel blocks are replaced after the Aircraft lands at the end of a flight in one-tenth (1/10th) of an hour increments. Flight Hours also include any flight hours consumed in repositioning the Aircraft to
facilitate Lessee’s scheduled itineraries. 

 **“FSDO Notice”** means a FSDO Notification Letter in the form of
Schedule B attached hereto. 

 **“Lien”** means any mortgage, security interest, international interest,
lease or other charge or encumbrance or claim or right of others, including, without limitation, rights of others under any airframe or engine interchange or pooling agreement. 

 **“Operating Base”** means Dulles International Airport, Virginia. 


**“Operational Control”** has the same meaning given the term in Section 1.1 of the FARs.